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Improve support for changing cam clock frequency

This commit is contained in:
Owen 2021-07-03 16:10:37 +02:00
parent 56c52672b2
commit 3ba9e818a7
3 changed files with 14 additions and 3 deletions
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10
esp32-cam-webserver.ino
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@ -133,6 +133,13 @@ unsigned long imagesServed = 0; // Total image requests
// This will be displayed to identify the firmware // This will be displayed to identify the firmware
char myVer[] PROGMEM = __DATE__ " @ " __TIME__; char myVer[] PROGMEM = __DATE__ " @ " __TIME__;
// Camera module bus communications frequency.
// Originally: config.xclk_freq_hz = 20000000, but this lead to visual artifacts on many modules.
// See https://github.com/espressif/esp32-camera/issues/150#issuecomment-726473652 et al.
#if !defined (XCLK_FREQ_HZ)
#define XCLK_FREQ_HZ 16500000;
#endif
// initial rotation // initial rotation
// can be set in myconfig.h // can be set in myconfig.h
#if !defined(CAM_ROTATION) #if !defined(CAM_ROTATION)
@ -482,8 +489,7 @@ void setup() {
config.pin_sscb_scl = SIOC_GPIO_NUM; config.pin_sscb_scl = SIOC_GPIO_NUM;
config.pin_pwdn = PWDN_GPIO_NUM; config.pin_pwdn = PWDN_GPIO_NUM;
config.pin_reset = RESET_GPIO_NUM; config.pin_reset = RESET_GPIO_NUM;
// originally: config.xclk_freq_hz = 20000000; config.xclk_freq_hz = XCLK_FREQ_HZ;
config.xclk_freq_hz = 16500000; // See https://github.com/espressif/esp32-camera/issues/150#issuecomment-726473652 et al.
config.pixel_format = PIXFORMAT_JPEG; config.pixel_format = PIXFORMAT_JPEG;
// Pre-allocate large buffers // Pre-allocate large buffers
if(psramFound()){ if(psramFound()){

5
myconfig.sample.h
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@ -179,3 +179,8 @@ struct station stationList[] = {{"ssid1", "pass1", true},
// #define CAMERA_MODEL_M5STACK_WIDE // #define CAMERA_MODEL_M5STACK_WIDE
// #define CAMERA_MODEL_M5STACK_ESP32CAM // Originally: CAMERA_MODEL_M5STACK_NO_PSRAM // #define CAMERA_MODEL_M5STACK_ESP32CAM // Originally: CAMERA_MODEL_M5STACK_NO_PSRAM
// #define CAMERA_MODEL_TTGO_T_JOURNAL // #define CAMERA_MODEL_TTGO_T_JOURNAL
// Camera module bus communications frequency, setting too high can cause visual artifacts.
// Currently defaults to 16.5MHz, but some (non-clone) modules may be able to use the
// original frequency of 20MHz for to allow higher framerates etc.
// #define XCLK_FREQ_HZ 20000000;

2
src/version.h
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@ -1,4 +1,4 @@
/* Version of upstream code */ /* Version of upstream code */
char baseVersion[] = "4.0.alpha"; char baseVersion[] = "4.0.beta2";